Fair Value Measurements - Schedule of assets and liabilities measured at fair value on recurring basis (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Liabilities
Warrant liabilities	$ 3,555	$ 15,473
Recurring | Money market funds
Assets
Cash and cash equivalents:	458,676	513,009
Recurring | International treasuries
Assets
Cash and cash equivalents:	3,777
Recurring | Private Placement Warrants
Liabilities
Warrant liabilities	3,555	15,473
Level 1 | Recurring | Money market funds
Assets
Cash and cash equivalents:	458,676	513,009
Level 1 | Recurring | International treasuries
Assets
Cash and cash equivalents:	0
Level 1 | Recurring | Private Placement Warrants
Liabilities
Warrant liabilities	0	0
Level 2 | Recurring | Money market funds
Assets
Cash and cash equivalents:	0	0
Level 2 | Recurring | International treasuries
Assets
Cash and cash equivalents:	3,777
Level 2 | Recurring | Private Placement Warrants
Liabilities
Warrant liabilities	0	0
Level 3 | Recurring | Money market funds
Assets
Cash and cash equivalents:	0	0
Level 3 | Recurring | International treasuries
Assets
Cash and cash equivalents:	0
Level 3 | Recurring | Private Placement Warrants
Liabilities
Warrant liabilities	$ 3,555	$ 15,473